Structural Calculations - Jeffery and Wilkes

// The Minutest Details

Structural Calculations

A structural calculations report provides a full outline of design and build work to be carried out. It is minutely detailed and will include such information on how the foundations are to be dug, materials required, structural works, supporting walls, measurements, beams, joists, rafters, load bearings and concrete reinforcement or steel connection calculations.The report will be created by a qualified structural engineer.


book your free consultation

Learn more about what we can do specifically for you by booking a FREE consultation with one of our experts.

Book Now

When Do You Require Structural Calculations? 

Any home extension or loft conversion will require structural calculations. If you are carrying out an extensive home refurbishment that involves removing load bearing walls or chimney breasts, you will also need them.

Who Arranges Structural Calculations? 

If you already know a good engineer then you can arrange this for yourself, but usually, the engineer works hand in hand with the architect or surveyor. They work together to ensure the specification works from an aesthetic & practical point of view.

Who Pays For Structural Calculations? 

The client will need to cover the cost of this. It’s difficult to give an accurate price until the engineer has had sight of the drawings, as usually the cost is based on time or the number of steel beams requiring calculation. For standard home extensions and loft conversions costs may range from £500 to £1500.

  • See our blog post which discusses structural calculations in further detail.
  • It also helps the chosen builder prepare for the build, identifying potential problems to avoid or solutions which will save the customer money in the long term.
  • The structural calculations report is vital and forms part of the governments building regulations that ensure the safety of a new building.

Take Our FREE Home Improvement Quiz

  • Increase your property value up to a whopping 40%
  • Find out the home improvements you can make to your property
  • New innovative ideas for your home you may not even realise exist

Jeffery and Wilkes is an accredited design and build company encompassing a full design to completion service, inspiring and supporting clients to create exciting spaces and safe environments to live, work and play.


micro-giving impacts created

Our greatest wish is to make a tangible, positive difference - not only with the environments we create for our clients, but also for the wider community.

To this end, we’ve partnered with B1G1 Business For Good. For every build we complete, we make a donation to a community project – transforming the lives of our clients and the lives of various communities that need our help.